Articles

Python program to check if a number is prime or not

Python program to check if a number is prime or not


In this Python programming guide, we are going to learn

  • program to check if a number is prime or not in python

Program to check if a number is prime or not in Python

The python program to check if a number is prime or not is as follows:

# Owner : TutorialsInhand Author : Devjeet Roy

number  = int(input("Enter number: "))

if number > 1:
   for i in range(2,(number//2)+1):
       if (number % i) == 0:
           print(number,"is not a prime number")
           break
   else:
       print(number,"is a prime number")
else:
   print(number,"is not a prime number")

The output of python program to check if a number is prime or not is as follows:

 

PS C:\Users\DEVJEET\Desktop\tutorialsInHand> python code.py
Enter number: 81
81 is not a prime number

Few important tips about this program

1. We take a user input and convert it to int data type.

2. Then to check if a number "n" is prime or not we repeat the loop upto n/2 (inclusive). If any number within that range divides it then the number is not prime, else the number is prime.

3. Finally, we print the answer on the terminal.

 

Python program to find out whether a number is prime or not snapshot:

python program to find prime number

 



Would you like to see your article here on tutorialsinhand. Join Write4Us program by tutorialsinhand.com

About the Author
Devjeet Roy
Full Stack Web Developer & Data Science Enthusiast
Page Views :    Published Date : Feb 22,2021  
Please Share this page

Related Articles

Like every other website we use cookies. By using our site you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. Learn more Got it!